第6题: [单项选择]It was so dark outside that he didn't ______. A. dare to go out to fetch some water B. dare fetch some water C. dare go out to bring some water D. to dare fetch some water 参考答案:A 答案解析:此题旨在检测考生对于dare习惯用法的掌握情况。dare有主动词和助动词之分。作为主动词时,其肯定式为dare to,否定式为don't dare to,疑问式为Do you dare to...如:
A. The early history of newspapers in America. B. The Boston News-Letter. C. Contents of the Boston News-Letter. D. Editors of the Boston News-Letter. 参考答案:B
A. play musical instrument. B. interact with other people. C. recognize their parents. D. be invited to birthday parties. 参考答案:B 答案解析:[注释] 细节题。文章第一段提到Adam患病时的症状有:“…has trouble interacting with others and forming relationships.”(与别人交流和
第22题: [单项选择]主要成分类型为三萜皂苷的药材为() A. 细辛 B. 香加皮 C. 黄芩 D. 黄芪 E. 麦冬 参考答案:D 答案解析:本组题主要考查三萜皂苷、甾体皂苷、强心苷及其代表药材的区分。细辛的主要成分为挥发油、木脂素、黄酮等;香加皮是含强心苷的代表药材,此外罗布麻叶也含有强心苷;黄芩主要含黄酮及其苷类;黄芪是含三萜皂苷的代表